Improvement in knitting-machines



J. A. FARR. Knitting-"Machine;

No. 213,299. Patented Mar. 18, 1879.

"PETERS, FHOTO-LITHOGRAPHER. WASHINGTONv Dv Cv JAMES A. FARR, OF NEWm'rnn PATENT OFFICE.

BRITAIN, CONNECTICUT.

IMPROVEMENT IN KNITTING-MACHINES.

Specification forming part of Letters Patent No. 213,299, dated March18, 1879; application filed November 1, 1878.

To all whom it may concern:

Be it known that I, JAMES A. PARR, of New Britain, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements pertaining to Knitting-lllachines, of which the followingis a specification, reference being had to the accompanying drawings,where- Figure 1 is a top view. Fig. 2 is a side view; and Fig. 3 is alsoa side view from the opposite side.

In the knitting of striped goodsthat is, goods having bars or sectionsof different colors-with the common knitting machinery it is thepractice to break the feeding-in thread when it is desired to introducea different color, and introduce the thread of the new color-all this byhand.

It is the purpose of my invention to effect this change automatically bymachinery; and the invention consists of the combination of partshereinafter specifically claimed.

The letter (1. denotes the ordinary rotating needle disk or cylinder,carrying at its periphery a continuous series of upright machineneedles.The letter 1) denotes the crimper or sinker wheel, rotated byintermeshing with the rotating needles. The machine has the usualappurtenances.

- The thread or yarn guide 0, through which the thread is fed to thecrimper or sinker wheel and needles, in the place of being rigid andstationary, as is common, is pivoted at the rear end, so that the frontend may have some up-and-down play. ,A pitman or connectingrod, d, runsfrom 'the thread or yarn guide to the pivoted lever e, the rear end ofwhich is furnished with a tappet, e, acted upon from time to time by thecanrblocks f, which are on the disk g.

The needle disk or cylinder a is provided with an arm, h, rigid with it,which at each revolution of the needle disk or cylinder comes in contactwith and forces back the pendule i, which is retracted to its placeafter the passage of the arm h by a spring or weight. On this pendule ispivoted the pawl j, drawn to, mesh with the rotating ratchet k by thespring Z. The ratchet 7a is fast with the disk g, so

that each rotation of the needle disk or cylinder causes the disk g torotate a step. At

tappet c, with the effect of raising it and of correspondinglydepressing the free end of the thread or yarn guide 0, which throws thefeeding-in thread out of the grasp of the crimper or sinker wheel andneedles, and so stops the knitting of the color with which the yarnguideis supplied.

The cam-blocks f are made adjustable on the disk 9, so that the stoppingof the feed may be made to occur at desired points. When the cam-blockpasses the tappet the feeding is, of course, resumed. During theinterval, the length of which is regulated by the length of thecam-block, another color is thrown into feed, and knitted into thefabric, by a similar mechanism.

The lever 6 also operates, simultaneously, a knife which is on theopposite side of the crimper or sinker wheel. Theletter m denotes thelower jaw of this knife, pivoted at its rear end, and bearing a blade,m, and n denotes the upper jaw, also pivoted. The letter 0 denotes theconnecting-rod running from the upper jaw to the lever 0, whereby theknife is operated. \Nhen the thread or yarn guide 0 is thrown down thejaw n is thrown down upon the lower jaw, and the feeding-in thread isthereby severed across the blade m. When the thread or yarn guide 0rises the jaw it rises with it. The jaw on also rises a short distance,in order to assist in throwing the thread across the face of the crimperor sinker wheel, being thereto impelled by the pressure of the spring1), which is attached to the jaw n and bears against the side of the jawm. The upward movement of the jaw m is stopped at a given point by ahook, r, or any other suitable device, after which the spring 19 lets upits pressure and the jaw m falls down again.

I claim as my invention- The rotating needle disk or cylinder at,crimper or sinker wheel b, vibratory feeding thread or yarn guide 0,connecting-rod d, lever e, rotating disk g, and cam-blocks f, ratchet k,pawl j, pendule 1', arm h, connecting-rod 0, and knife-jaws m n, allcombined to operate substantially as described.

JAMES A. FARR.

Witnesses:

HENRY C. WILLIAMS, J ULrUs H. PEASE.

